A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
Classification: Nuts of iron or steel
NSN 6135-01-628-1688
NSN 5998-01-145-9827
NSN 5999-00-869-6587
NSN 6685-00-311-5700
NSN 5915-01-598-4442
NSN 6145-01-213-6635
NSN 6645-00-056-1580
NSN 6130-01-527-5372
NSN 6685-01-238-1851
NSN 5998-00-873-3164
NSN 5915-01-510-8578
NSN 6320-01-592-6248